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From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 6/6] drm/i915: Set initial seqno value close to wrap boundary
Date: Tue,  4 Dec 2012 15:12:05 +0200	[thread overview]
Message-ID: <1354626725-8521-7-git-send-email-mika.kuoppala@intel.com> (raw)
In-Reply-To: <1354626725-8521-1-git-send-email-mika.kuoppala@intel.com>

To gain confidence in the wrap handling, make it happen quite
soon after the boot.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 02d3151..70bb4e8 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3947,7 +3947,7 @@ i915_gem_init_hw(struct drm_device *dev)
 			goto cleanup_bsd_ring;
 	}
 
-	dev_priv->next_seqno = 1;
+	dev_priv->next_seqno = (u32)-1 - 0x1000;
 
 	/*
 	 * XXX: There was some w/a described somewhere suggesting loading
-- 
1.7.9.5

  parent reply	other threads:[~2012-12-04 13:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-04 13:11 [PATCH 0/6] ring seqno wrap handling Mika Kuoppala
2012-12-04 13:12 ` [PATCH 1/6] drm/i915: Add debugfs entry to read/write next_seqno Mika Kuoppala
2012-12-04 13:12 ` [PATCH 2/6] drm/i915: Fix debugfs seqno info print to use uint Mika Kuoppala
2012-12-04 13:12 ` [PATCH 3/6] drm/i915: Don't emit semaphore wait if wrap happened Mika Kuoppala
2012-12-05 20:44   ` Paulo Zanoni
2012-12-06  8:51     ` Daniel Vetter
2012-12-06 11:41       ` Paulo Zanoni
2012-12-06 12:14         ` Daniel Vetter
2012-12-06 12:24           ` Chris Wilson
2012-12-06 14:12   ` [PATCH] Detect wraparound using next-seqno rather than waiter->olr Chris Wilson
2012-12-04 13:12 ` [PATCH 4/6] drm/i915: Split intel_ring_begin Mika Kuoppala
2012-12-04 13:12 ` [PATCH 5/6] drm/i915: Add intel_ring_handle_seqno wrap Mika Kuoppala
2012-12-04 13:12 ` Mika Kuoppala [this message]
2012-12-04 14:05 ` [PATCH 0/6] ring seqno wrap handling Chris Wilson
2012-12-04 22:03   ` Daniel Vetter

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